Download or read book Measurement of the Polarization in the Decay B sup 0 Yields J written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement of the Polarization in the Decay B sup 0 yields J psi K sup 0 in bar P p Collisions at radical written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper reports on the measurement of the polarization in the decay B[sup o] [yields] J/[psi]K[sup *o] using data collected at the collider Detector at Fermilab in [bar p]p collisions at [radical]s = 1.8 TeV. B[sup O] mesons were reconstructed through the decay chain B[sup o] [yields] J/[psi]K[sup *o], J/[psi] [yields] [mu][sup +][mu][sup [minus]], K[sup *o] [yields] K[sup +][pi][sup [minus]]. A sample of 50 [plus-minus] 11 events was used in the measurement, yielding the result [Gamma][sub L]/[Gamma] = 0.66 [plus-minus] 0.10 (stat) [sub [minus]]0.10 [sup +0.08] (sys).

Download or read book Measurement of the Polarization in the Decays B sup 0 yields J psi K sup 0 and B sub S sup 0 yields J psi phi written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report on a measurement of the longitudinal polarization fraction in the decay B[sup 0][yields] J/[psi]K*[sup 0] using data collected with the Collider Detector at Fermilab. B[sup 0] mesons are reconstructed through the decay chain B[sup 0][yields] J/[psi] K*[sup 0], J/[psi][yields][mu][sup+][mu][sup[minus]], K*[sup 0][yields] K[sup+][pi][sup[minus]]. A sample of 65[+-] 10 events is used to obtain the result[Lambda][sub L]/[Lambda]= 0.65[+-] 0.10 (stat)[+-] 0.04 (sys). The first measurement of[Lambda][sub L]/[Lambda] in the decay B[sub s][sup 0][yields] J/[psi][phi] is also presented.

Download or read book Measurement of the Polarization in the Decay B J K sup 0 in bar P p Collisions at s written by and published by . This book was released on 1994 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper reports on the measurement of the polarization in the decay B{sup o} → J/?K{sup *o} using data collected at the collider Detector at Fermilab in {bar p}p collisions at √s = 1.8 TeV. B{sup O} mesons were reconstructed through the decay chain B{sup o} → J/?K{sup *o}, J/? →??−, K{sup *o} → K+?−. A sample of 50 ± 11 events was used in the measurement, yielding the result?{sub L}/? = 0.66 ± 0.10 (stat) −0.10 {sup +0.08} (sys).

Download or read book MEASUREMENT OF THE POLARIZATION IN THE DECAYS B SUP 0 J PSI K SUP written by F. Abe and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement of the Branching Fraction and Polarization for the Decay B sup yields D sup 0 K sup written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a study of the decay B[sup -][yields] D*[sup 0] K*[sup -] based on a sample of 86 million[Upsilon](4S)[yields] B[bar B] decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factor at SLAC. The authors measure the branching fraction[Beta](B[sup -][yields] D*[sup 0] K*[sup -])= (8.3[+-] 1.1(stat)[+-] 1.0(syst)) x 10[sup -4], and the fraction of longitudinal polarization in this decay to be[Lambda][sub L]/[Lambda]= 0.86[+-] 0.06(stat)[+-] 0.03(syst).

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1996 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Observation of the Decay B0 rho rho and Measurement of the Branching Fraction and Polarization written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We have observed the rare decay B[sup 0] [yields] [rho][sup +][rho][sup -] in a sample of 89 million B[bar B] pairs recorded with the BABAR detector. We measure the branching fraction [Beta](B[sup 0] [yields] [rho][sup +][rho][sup -]) = (27[sub -6-7][sup +7+5]) x 10[sup -6] and determine the longitudinal polarization fraction [Lambda][sub L]/[Lambda] = 0.99[sub -0.07][sup +0.01] [+-] 0.03. The results are preliminary.

Download or read book Measurement of the polarization in the decay B J y63K J psiK written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polarization Puzzle in B yields phi K and Other B yields VV at BABAR written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With a sample of about 227 million B[bar B] pairs recorded with the BABAR detector they perform a full angular analysis of the decay B[sup 0] [yields] [phi]K*[sup 0](892). Ten measurements include polarization, phases, and five CP asymmetries. They also observe the decay B[sup 0] [yields] [phi]K*[sup 0](1430). Polarization measurements are performed with the B [yields] [rho]K*(892), B [yields] [rho][rho], and B [yields] [rho][omega] decay modes, and limits are set on the B [yields] [omega]K*(892) decay rates. These measurements help to understand the puzzle of large fraction of transverse polarization observed in B [yields] [phi]K* decays and allow for new ways to study CP violation and potential new amplitude contributions.

Download or read book Rates Polarizations and Asymmetries in Charmless Vector Vector B Meson Decays written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With a sample of approximately 89 million BB pairs collected with the BABAR detector, we perform a search for B meson decays into pairs of charmless vector mesons ([phi], [rho], and K*). We measure the branching fractions, determine the degree of longitudinal polarization, and search for CP violation asymmetries in the processes B[sup+][yields][phi]K*[sup+], B[sup 0][yields][phi]K*[sup 0], B[sup+][yields][rho][sup 0]K*[sup+], and B[sup+][yields][rho][sup 0][rho][sup+]. We also set an upper limit on the branching fraction for the decay B[sup 0][yields][rho][sup 0][rho][sup 0].

Download or read book Measurement of the polarization in the decay B J K J psiK written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1989 with total page 1468 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement of the Polarization in the Decays B J K and B sub S J written by and published by . This book was released on 1995 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report on a measurement of the longitudinal polarization fraction in the decay B° → J/?K*° using data collected with the Collider Detector at Fermilab. B° mesons are reconstructed through the decay chain B° → J/? K*°, J/? →??−, K*° → K+?−. A sample of 65 ± 10 events is used to obtain the result?{sub L}/? = 0.65 ± 0.10 (stat) ± 0.04 (sys). The first measurement of?{sub L}/? in the decay B{sub s}° → J/?? is also presented.

Download or read book Measurement of the Polarization Parameter for the Reaction pi sup p Yields pi sup 0 n Between 1 03 and 1 79 GeV c written by and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: From 2nd international conference on elementary particles; Aixen- Provence, France (6 Sep 1973). Measurements of the polarization parameter for the reaction pi /sup -/p yields pi /sup o/n were made at the five momenta 1.03, 1.245, 1.44, 1.5 and 1.79 GeV/c. A polarized target was used, with polarizations achieved ranging from 48 to 57%. Salient features of the experiment were the use of neutron counters for time-of-flight measurements as well as angular information and the use of optical spark chambers, seven to eight radiation lengths thick, for the detection of the gamma rays from the decay of the pi /sup o/. The center-ofmass angular range covered by the 20 neutron counters was typically --.78